* {margin: 0;padding: 0;-webkit-box-sizing: border-box;-moz-box-sizing: border-box;box-sizing: border-box;}
body {background-color: #fff;font-family: 微软雅黑;color: #777;font-size: 3vw;font-family: 'Avenir', Helvetica, Arial, sans-serif;}
div {display: block;margin: 0;}
a {text-decoration: none;color: #fff;}

.left {float: left;}
.right {float: right;}
.red {color: red;}

.gradation_red_btn {
  text-align: center;
  border-radius: 6vw;
  color: #fff;
  background: -moz-linear-gradient(left, #f8121b 0%, #ff694a 100%);
  background: -webkit-linear-gradient(left, #f8121b 0%, #ff694a 100%);
  background: -o-linear-gradient(left, #f8121b 0%, #ff694a 100%);
  background: -ms-linear-gradient(left, #f8121b 0%, #ff694a 100%);
}
